Improvement in coal-chutes



UNITED STATES PATENT OFFICE EDMUND R. BULKLEY, OF PERTH AMBOY, NEWJERSEY.

IMPROVEMENT IN COAL-CHUTES.

Specification forming part of Letters Patent No. 182,] 00, datedSeptember 12, 1876; application filed March 6, 1876.

- intermediate or upper chute-section having a sieve bottom forsiftingout the fine coal as it ,passes from the' bin, and for p'eventinga too violent fall of the coal into the hold of the vessel, as will behereinafte'r more fully described. a

Figure 1 is a side elevation of my improved coal-chute. Fig.2 is alongitndinal sectional elevation. Fig. 3 is a plan View. Fig. 4 is afront elevation.

A is the bin containing the coal; B, the upper portion of the ehutecontaining the screen C, and D is the lower portion of the ehute.

Heretofore only the lower portion D bas been made to rise and fall, theupper portion being made stationary, and being necessarily located highenoughfor chuting the coal into Vessels at high-water; consequently, thefall from part D into the hold at low-water is so great that the coalbreaks up badly, and as there is 'no way of separating the fine particles thecoal goes to market in that state,

which sometimes considerablydepreciates the value. I therefore proposeto make the upper part B adjustable also, so that the fall will mainlyoccur from the bin into the chute, striking on the close bottons abovethe screens, and then passing over it and sifting out the broken pieces,after which the descent into the hold through the lower part is sogentle that but little breakage occurs.

The hoisting and lowering of the part B will be effected by ropes orchains E and gear F, of any approved arrangement, the same as areemployed for the other parts.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The combination,`with feederAand the discharge D, of the sifter-sectionlB, movable to a higher or lower position at both ends, thereby causingthe fall and breakage of coal before the latter passes the sifter.

EDMUND R. BULKLEY. Witnesses:

GHAs. P. BROOKS, D. D. BRODHEAD, Sr.

